import os

import requests
from lxml import etree
if __name__ == '__main__':
    url = 'http://pic.netbian.com/4kmeinv/'
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36'
    }
    response = requests.get(url=url, headers=headers)
    # 手动设定响应数据的编码格式
    # response.encoding='utf-8'
    page_text = response.text

    # 数据解析：src
    tree = etree.HTML(page_text)
    li_list = tree.xpath('//div[@class="slist"]/ul/li')
    if not os.path.exists('./picLibs'):
        os.mkdir('./picLibs')
    for li in li_list:
        img_src = 'https://pic.netbian.com' + li.xpath('./a/img/@src')[0]
        img_name = li.xpath('./a/img/@alt')[0]+ '.jpg'
        # 通用处理中文乱码的解决方案
        img_name = img_name.encode('iso-8859-1').decode('gbk')
        # print(img_src, img_name)

        # 请求图片进行持久化存储
        img_data = requests.get(img_src, headers).content
        img_path = './picLibs/' + img_name
        with open(img_path,'wb') as fp:
            fp.write(img_data)
            print(img_name, '下载成功')